Higher blood and dietary antioxidant nutrient levels predict reduced mortality risk over 13 year average"Increased plasma vitamin C, alpha-carotene, selenium, zinc and iron were signficantly associated with a reduction in all-cause mortality, as was the dietary intake of vitamin C, carotenoids, zinc, copper and total energy. These patterns remained fundamentally similar when deaths from vascular, cancer and respiratory diseases were separately considered, however, increased dietary vitamins C and E were found to confer a significant protective effect against cancer, and dietary vitamin E protected against respiratory disease in males (while carotenoid intake was protective in women)."http://www.lef.org/newsletter/2010/1001 ... =0#article